Second trip pricier than the first
Marketing checks whether spending grows. Find riders whose second trip by time was more expensive than their first. Return rider_id ascending.
Eksempel på forventet output
Sådan ser et korrekt svar ud — dets rækketal er dets eget og behøver ikke at matche skematabellerne.
| rider_id |
|---|
| 1 |
| 3 |
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